EP 1089257 A2 20010404 - Header data formatting for a vocoder
Title (en)
Header data formatting for a vocoder
Title (de)
Kopfdateien Formatierung für einen Sprachkodierer
Title (fr)
Formation de données d'en-tête pour un vocodeur
Publication
Application
Priority
US 40918399 A 19990930
Abstract (en)
A system controller (106) includes a speech encoder (107) that encodes a low bit rate digital voice message. The speech encoder sets values of words of a header of the encoded message. The values of the words define a quantity of frames in the voice message, N, and define a vocoder rate used for the encoded message. The speech encoder sets a state of each indicator in each frame status field of N frame status fields that are transmitted after the header of the encoded message. The speech encoder assembles N frame data fields, wherein each of the frame data fields comprises a set of data words. The N frame data fields follow the N frame status fields. Each set of data words conforms to at least one of the vocoder rate and the states of the indicators. A decoder (3310) decodes the encoded low bit rate digital message. <IMAGE>
IPC 1-7
IPC 8 full level
G10L 19/14 (2006.01)
CPC (source: EP US)
G10L 19/167 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1089257 A2 20010404; EP 1089257 A3 20030122; US 6496798 B1 20021217
DOCDB simple family (application)
EP 00121165 A 20000929; US 40918399 A 19990930